2006 DODGE RAM SRT-10 engine

10.ECM
Reconnect the ECM harness connectors.
Measure the voltage between the (K44) signal circuit in the sensor har-
ness connector and battery negative.
Is the voltage less than 1 volt?
Ye s>>
Refer to the INTERMITTENT CONDITION Symptom (Diag-
nostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

When Monitored:
While the engine is running.
Set Condition:
The ECM no longer detects a signal from the Engine Position Sensor.
Possible Causes
INJECTOR DTC’S PRESENT
OTHER DTC’S
CAMSHAFT SENSOR
(K44) SIGNAL CIRCUIT OPEN
(F855) 5-VOLT SUPPLY CIRCUIT OPEN
(K916) RETURN CIRCUIT OPEN
(K44) SIGNAL CIRCUIT SHORTED TO GROUND
(K44) SIGNAL CIRCUIT SHORTED TO (F855) 5-VOLT SUPPLY CIRCUIT
(K44) SIGNAL CIRCUIT SHORTED TO (K916) RETURN CIRCUIT
(K44) SIGNAL CIRCUIT SHORT TO VOLTAGE
ECM
INTERMITTENT CONDITION
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.INJECTOR DTC’S PRESENT
With the scan tool, read DTCs.
Do you have a DTC for P2146 or P2149?
Ye s>>
Repair injector DTC’s first.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 2
2.OTHER DTC’S
With the scan tool, read DTCs.
Is any other DTC’s present?
Ye s>>
Repair other DTC’s first.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 3

3.CAMSHAFT SENSOR
Turn the ignition off.
Disconnect the cam sensor harness connector.
Check connectors - Clean/repair as necessary.
Measure the resistance between the (F855) 5-volt supply circuit and the (K44) signal circuit of the sensor.
Is the resistance between 900 and 1100 ohms?
Ye s>>
Go To 4
No>>
Replace the camshaft sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
4.(K44) SIGNAL CIRCUIT OPEN
Disconnect the ECM harness connectors.
Measure the resistance of the (K44) signal circuit between the ECM
harness connector and the sensor harness connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 5
No>>
Repair the open (K44) signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

5.Diagnostic Test Topic Goes Here
Measure the resistance of the (F855) 5-volt supply circuit between the
ECM harness connector and the sensor harness connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 6
No>>
Repair the open (F855) 5-volt supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
6.(K916) RETURN CIRCUIT OPEN
Measure the resistance of the (K916) return circuit between the ECM
harness connector and the sensor harness connector.
Is the resistance less than 10 ohms?
Ye s>>
Go To 7
No>>
Repair the open (K916) return circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

7.(K44) SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the (K44) signal circuit in the sensor
harness connector and battery negative.
Is the resistance greater than 100k ohms?
Ye s>>
Go To 8
No>>
Repair (K44) signal circuit shorted to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
8.(K44) SIGNAL CIRCUIT SHORTED TO (F855) 5-VOLT SUPPLY CIRCUIT
Measure the resistance between the (K44) signal circuit and the (F855)
5-volt supply circuit in the sensor harness connector.
Is the resistance greater than 100k ohms?
Ye s>>
Go To 9
No>>
Repair (K44) signal circuit shorted to the (F855) 5-volt sup-
ply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
9.(K44) SIGNAL CIRCUIT SHORTED TO (K916) RETURN CIRCUIT
Measure the resistance between the (K44) signal circuit and the (K916)
return circuit in the sensor harness connector.
Is the resistance greater than 100k ohms?
Ye s>>
Go To 10
No>>
Repair (K44) signal circuit shorted to the (K916) return cir-
cuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

10.(K44) SIGNAL CIRCUIT SHORT TO VOLTAGE
Measure the voltage between the (K44) signal circuit in the sensor har-
ness connector and battery negative.
Is the voltage less than 1 volt?
Ye s>>
Go To 11
No>>
Repair (K44) signal circuit shorted to voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
11 .ECM
Reconnect the ECM harness connectors.
Measure the voltage between the (K44) signal circuit in the sensor har-
ness connector and battery negative.
Is the voltage less than 1 volt?
Ye s>>
Te s t C o m p l e t e .
No>>
Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

P0381-WAIT TO START LAMP INOPERATIVE
For a complete wiring diagramRefer to Section 8W.
When Monitored:
Ignition on.
Set Condition:
The cluster sends a signal to the ECM that it has detected a failed wait to start lamp.
Possible Causes
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
WAIT-TO-START LIGHT BULB
WIRING/CONNECTOR PROBLEM
ECM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.WAIT-TO-START LAMP DOES NOT COME ON
Turn the ignition off.
While watching the wait-to-start lamp, turn the ignition key on.
Did the wait-to-start lamp light?
Ye s>>
Go To 2
No>>
Go To 3
2.WAIT-TO-START LAMP STAYS ON ALL THE TIME
Turn the ignition off.
While watching the wait-to-start lamp, turn the ignition key on.
Does the wait-to-start lamp stay on all the time?
Ye s>>
Go To 3
No>>
Wait-to-start Lamp operating normally. Test passed.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

3.FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
Turn the ignition off.
Remove the cluster.
NOTE: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a 12-Volt test Light, check the Fused Ignition Switch Run/Start
circuit.
Is the light illuminated and bright?
Ye s>>
Go To 4
No>>
Repair the open fused Ignition Switch Output circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)
4.WAIT-TO-START LIGHT BULB
Remove and inspect the Wait-to-Start Bulb.
Is the Bulb Ok?
Ye s>>
Te s t c o m p l e t e .
No>>
Replace the Wait-to-Start Bulb.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)